Geological Exploration Alloy Steel Pipe

• ​Introduction

Geological Exploration Alloy Steel Pipe is a specialized tubular product designed for drilling and extraction in harsh geological environments, such as mineral exploration. It offers superior mechanical strength, corrosion resistance, and fatigue durability to withstand high pressure, abrasive strata, and corrosive media.

• ​Main Functions

Load-bearing Structure: Supports drilling equipment and withstands axial/radial stresses during exploration. Fluid Transport: Channels drilling mud or geothermal fluids. Corrosion & Abrasion Resistance: Resists chemical corrosion and mechanical wear in complex strata.

• ​Tubing Standards

GB/T 9808；EN 10208-2；EN 10083；ASTM A519；

• ​Material & Performance

ZT380，ZT490，ZT520，ZT590，ZT640，ZT750，ZT850，ZT950； P235TR1/TR2，P265TR1/TR2，P295TR1/TR2；42CrMo4；4130，4140，4340；

Performance-driven: Focus on mechanical properties (tensile, torsional, abrasion resistance) Process Flexibility：Our factory can utilize various alloy combinations (e.g., chromium-molybdenum, manganese-vanadium) to achieve performance targets.

• ​Manufacturing Process

Raw Material Preparation：High-purity alloy steel billets are selected and inspected for chemical composition and impurities.

Hot Rolling：The billet is heated and rolled into a hollow tube via a piercing mill, or extruded to form the initial pipe shape.

Heat Treatment： Normalizing：Improves microstructure and mechanical properties. Tempering：Reduces internal stress and enhances toughness.

Cold Drawing/Expanding (Optional)：Fine-tunes dimensions and surface finish for precise applications.

Non-Destructive Testing (NDT)：Ultrasonic testing (UT), eddy current testing (ET), and hydrostatic pressure testing are conducted to ensure freedom from defects.

Surface Treatment：Deburring, coating, and marking for identification and protection.

• Specifications